[CQ-Contest] Accuracy Top Ten Box

[Bill Hider]

Since at least 2011, the ARRL has been publishing the top 5 accurate stations, in several USA & DX categories, for the ARRL DX CW and ARRL DX SSB contests in terms of lowest error rate.  These are published in the Expanded Results for each contest and are available on the ARRL website under the results from each contest.

In terms of definitions of accuracy and error rate, in the 2011 Expanded Results for the ARRL DX SSB contest, by Ward Silver, N0AX, in Appendix A to those results, Ward published the following.  I would start with this:

Quoting the 2011 ARRL DX SSB Expanded Results:

START QUOTE

Appendix B - Error Rate and Accuracy Index

Error rate is calculated in percent as the number of “bad” QSOs – those listed in your Log Checking Report with a busted call (B), a miscopied exchange (X), or “Not In Logs” that can’t be found in the other station’s log (N) – divided by the total number of verified-good QSOs after duplicates have been removed from that log.
Error Rate (%) = 100% X (B+X+N) / QSOs

The accuracy index is a measure calculated so as to reward lower error rates for large logs. That is, for two logs with equal error rates, the log with more verified contacts has a higher accuracy index. The higher the index, the more accurate the operator(s).
Accuracy Index = log10 (QSOs) + 10 X (1 - Error Rate in %/100)

END QUOTE

73,

Bill, N3RR


-----Original Message-----
From: CQ-Contest [mailto:cq-contest-bounces at contesting.com] On Behalf Of Randy Thompson K5ZD
Sent: Wednesday, April 02, 2014 3:21 PM
To: 'James Hadlock'; cq-contest at contesting.com
Subject: Re: [CQ-Contest] Accuracy Top Ten Box

An interesting idea.  What is the accepted definition for calculating "accuracy"?

Randy, K5ZD

> -----Original Message-----
> From: CQ-Contest [mailto:cq-contest-bounces at contesting.com] On Behalf 
> Of James Hadlock
> Sent: Wednesday, April 02, 2014 4:57 PM
> To: cq-contest at contesting.com
> Subject: [CQ-Contest] Accuracy Top Ten Box
> 
> 
> 
> 
> 
> ----- Original Message -----
> 
> From: James Hadlock<mailto:jrhadlock74 at msn.com>
> 
> To: cq-contest at contesting.com<mailto:cq-contest at contesting.com>
> 
> Sent: Wednesday, April 02, 2014 8:56 AM
> 
> Subject: Accuracy Top Ten Box
> 
> 
> 
> 
> How about contest organizers publish as part of the general results a 
> Top Ten box for Accuracy?  We already have individual accuracy reports 
> for the major contests - it would open a whole new form of competition.
> 
> 
> 
> Jim  K7WA
> _______________________________________________
> CQ-Contest mailing list
> CQ-Contest at contesting.com
> http://lists.contesting.com/mailman/listinfo/cq-contest

_______________________________________________
CQ-Contest mailing list
CQ-Contest at contesting.com
http://lists.contesting.com/mailman/listinfo/cq-contest


-----
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2014.0.4355 / Virus Database: 3722/7286 - Release Date: 04/02/14